HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 76
Plotting a piecewise-defined function
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hp40g+.book Page 12 Friday, December 9, 2005 1:03 AM Plotting a piecewise-defined function Suppose you wanted to plot the following piecewisedefined function. f(x) = x+2 x2 ⎩ 4-x ;x ≤ -1 ;-1 < x ≤ 1 ;x ≥ 1 1. Open the Function aplet. Select Function 2. Highlight the line you want to use, and enter the expression. (You can press to delete an existing line, or CLEAR to clear all lines.) 2 CHARS ≤ 1 CHARS > AND 4 1 CHARS ≤ 1 CHARS > 1 Note: You can use the menu key to assist in the entry of equations. It has the same effect as pressing . 3-12 Function aplet
3-12
Function aplet
Plotting a piecewise-defined function
Suppose you wanted to plot the following piecewise-
defined function.
1.
Open the Function
aplet.
Select
Function
2.
Highlight the line you want to use, and enter the
expression. (You can press
to delete an existing
line, or
CLEAR
to clear all lines.)
2
CHARS
≤
1
CHARS
>
1
AND
CHARS
≤
1
4
CHARS
>
1
Note: You can use the
menu key to assist in the
entry of equations. It has the same effect as pressing
.
fx
()
x
2
x
1
–
≤
;
+
x
2
1
–
x
1
≤
<
;
4
x
x
1
≥
;
–
⎩
⎪
⎨
⎪
⎧
=
hp40g+.book
Page 12
Friday, December 9, 2005
1:03 AM